36 MASTER A
*P.A.Section; Master volume A for power amp output.
Tip:
The two Master volume controls offer a few practical applications: adjust two different volume
levels in the poweramp and assign them to the four channels and the Rough and Smooth modes. Another
application is a combination with the two poweramp operating modes Triode and Pentode: Set the
desired volume level with one Master for the Pentode mode. With the other Master, adjust a very high
level that generates a great overdrive sound in poweramp Triode mode.
37 MASTER A/B
*P.A.Section; Switches between Master A and Master B; the active Master control is identified by an LED
next to the respective control, red LED: Master A (36); green LED: Master B (38). This feature can also be
switched via the MIDI Interface Port (45), or the footswitch jack (48); the channel selector pushbutton is
deactivated once a footswitch is connected to the footswitch jack (48).
38 MASTER B
*P.A.Section; Master volume B for power amp output.
Tip:
(see point 36, Tip!)
39 CHANNEL
Main Channel selector pushbutton; selects Main Channel 1 or 2 and, depending on the other channel
selector pushbutton settings (13 and 34). It activates the Clean, Crunch 1, Crunch 2 or Lead channels.
Off position: Main Channel 1 (Clean or Crunch 1), On position (pushed in): Main Channel 2 (Crunch 2 or
Lead). This feature can also be switched via the MIDI Interface Port (45) or the footswitch jack (46): the
channel selector pushbutton is deactivated once a footswitch is connected to the footswitch jack (46).
40 TRIODE PENTODE
*P.A.Section; Switches between Triode and Pentode operating modes in the poweramp. The red LED
above the pushbutton denotes Pentode mode. This feature can also be switched via the MIDI Interface
Port (45).
Tip:
Use the both poweramp modes as follows: 1. To reduce the output power in Tride mode to
approx. 1/2 of the Pentode power. Now you can generate excellent poweramp overdrive at a reasonable
volume level. 2. The two modes generate a different spectrum of overtones which alters the sound: In
combination with the four channels and sound modes, the two poweramp operating modes offer a wide
range of sound variations. The Triode mode has pronounced mids and sounds warm and creamy. The
close the poweramp gets to to the overdrive threshold, the more intense this effect becomes. Pentode
mode emphasizes bass and treble response, the sound character becomes somewhat more brittle and
refined.
41 STAND BY
Poweramp standby switch. Use this feature during a break; the amp is ready to perform immediately
because there delay while the tubes heat up. In order to conserve energy, we recommend that you
switch the amp off (42) during a lengthy break.
42 POWER
AC power on/off.
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